Hytron 12A7/CV909/NU-12A7 Half Wave Rectifier Pentode Audio Vacuum Tube Valve- B Description: Hytron 12A7/CV909/NU-12A7 Half Wave Rectifier Pentode Audio Vacuum Tube Valve- B Price : $ 36.00 ⭐⭐⭐⭐⭐ View on ↗ Wave 64627